Efficient Deformable Motion Correction for 3-D Abdominal MRI Using Manifold Regression

  • Xin Chen
  • Daniel R. Balfour
  • Paul K. Marsden
  • Andrew J. Reader
  • Claudia Prieto
  • Andrew P. King
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10434)

Abstract

We present a novel framework for efficient retrospective respiratory motion correction of 3-D abdominal MRI using manifold regression. K-space data are continuously acquired under free breathing using the stack-of-stars radial golden-angle trajectory. The stack-of-profiles (SoP) from all temporal positions are embedded into a common manifold, in which SoPs that were acquired at similar respiratory states are close together. Next, the SoPs in the manifold are clustered into groups using the k-means algorithm. One 3-D volume is reconstructed at the central SoP position of each cluster (a.k.a. key-volumes). Motion fields are estimated using deformable image registration between each of these key-volumes and a reference end-exhale volume. Subsequently, the motion field at any other SoP position in the manifold is derived using manifold regression. The regressed motion fields for each of the SoPs are used to determine a final motion-corrected MRI volume. The method was evaluated on realistic synthetic datasets which were generated from real MRI data and also tested on an in vivo dataset. The framework enables more accurate motion correction compared to the conventional binning-based approach, with high computational efficiency.

Keywords

3D abdominal MRI Manifold learning Manifold regression Motion correction 

Notes

Acknowledgements

This work was funded by the Engineering and Physical Sciences Research Council (Grant EP/M009319/1).

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Xin Chen
    • 1
    • 2
  • Daniel R. Balfour
    • 1
  • Paul K. Marsden
    • 1
  • Andrew J. Reader
    • 1
  • Claudia Prieto
    • 1
  • Andrew P. King
    • 1
  1. 1.Division of Imaging Sciences and Biomedical EngineeringKing’s College LondonLondonUK
  2. 2.School of Computer ScienceUniversity of NottinghamNottinghamUK

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